A bachelor's program in FM in India doesn’t require students to take Physics, Chemistry, and Math in 11th and 12th standard.
Do let us know if you find such a program.
Even with this degree, you won’t get into any Quant roles in India. The employers will always go straight to IITs/BITS.
Better to go to Europe or the UK for the bachelor's, they might grant you admission in the program without having taken the Science stream. Just score good in the A levels and get a top grade in Math.
Eg:
BSc Financial Mathematics and Statistics